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Old 02-09-2001, 07:11 PM   #1
Jon Bogert
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Question Prodrive WR Sport Muffler

<IMG SRC="http://www.new-impreza.com/parts/SACC2147.jpg" border=0>

I've been reading up on this item on Scoobynet. It apparently gives very good performance on turbocharged Imprezas, but is much quieter than the popular but incredibly loud Scoobysport muffler. It is also apparently available from Subaru dealers in the U.K.

Anyone in the U.S. using it? Anyone know where to get it? Perhaps I'll give Mike Shields a call Monday...
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Old 02-09-2001, 09:27 PM   #2
Kcz
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Just curious, what is the diameter on the piping?
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Old 02-10-2001, 11:23 AM   #3
Jon Bogert
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I don't know what size the inlet tubing is, but I'm not sure that's very important. It's used on Prodrive modified WRXs that make 250-260HP, which is certainly more power than I'll have.

Plus it apparently sounds nice. Read this: http://bbs.scoobynet.co.uk/Forum9/HTML/001198.html
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Old 02-11-2001, 10:32 PM   #4
Jon Bogert
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Smile

Well, the U.K. contingent should be waking up soon...
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Old 02-13-2001, 12:44 AM   #5
DreaminDemon
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is this available in the US? im looking for a performance exhaust that isnt loud at all, sounds perfect for me. Any info on where i can find out more?
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Old 02-13-2001, 05:32 PM   #6
markus
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Question

Also awaiting info! This would absolutely be the exhaust for me!!!! Good flow without the noise.

Anyone?...Anyone?...Bueller?...Bueller?
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Old 02-13-2001, 05:45 PM   #7
RidinLow
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Exclamation

Of course it matters what size the piping is!
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Old 02-13-2001, 06:39 PM   #8
Jon Bogert
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RidinLow, it only matters what size the TIP is.

What I meant was, for the HP levels I'm planning, and which the Prodrive PPP kit (of which this is a part) produces, it wouldn't have to be an 80mm honker to make the power. If I were running a Vishnu with 320HP, I'd pay a lot more attention to piping size.

I'm waiting for a PM back from WRXGirl, who assures me she can source it. Failing that, Mr. Prodrive (Mike Shields) is back in the office Thursday and I'll ask him.
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Old 02-14-2001, 01:24 PM   #9
MattC
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Please keep us informed, as I am trying to permanently replace my 4.25" N-1 tip.


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Old 02-14-2001, 07:45 PM   #10
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Any word if scoobysport is making a muffler for the new impreza?
Brian
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Old 02-14-2001, 09:44 PM   #11
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Thumbs up

Keep us posted John/WRXGirl.

And remember...its not how big the pipe is, but how big it gets.
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Old 02-15-2001, 11:54 AM   #12
Jon Bogert
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OK, here's the scoop from Mike Shields:

1) It costs $600-700 bucks.

2) It's nowhere near as good as the Scoobysport if you want to make REAL power.

3) He can get it by special order, but he doesn't know why anyone would want it for that price.

I asked Pam about better pricing. We'll see.
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Old 02-15-2001, 05:43 PM   #13
markus
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Well, making maximum power is not really my interest as far as an exhaust system is concerned. If it was, all the loud ones out there would do nicely.

I'm looking for something that will still provide as little back pressure as possible (for when I turbo my car) yet remain civilised enough so the droning won't ruin the long highway drives that I am required to constantly do for my job.
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Old 02-15-2001, 06:26 PM   #14
MattC
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Although you are definitely getting old That N-1 is just plain annoying. I am trying to make my car looks as clean as possible, and that thing just makes it impossible.

I am looking for a 3" in, and no more than a 3.5" out. Any takers?


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Old 02-15-2001, 09:47 PM   #15
rB5
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Exclamation

$600-700!? ...well, i was interested...

I'm with the others on the 'civilized' sound issue. So many manufacturers concentrate on making the largest can & most raucous noise from their systems, but that just isn't my style; and there are many more that have voiced the same.

I guess i am getting old (almost 25)...

[This message has been edited by rB5 (edited February 15, 2001).]
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Old 02-15-2001, 09:53 PM   #16
RidinLow
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Matt, I'd just go with a Borla universal. That's what I gave RalliSpec because I didn't want an extroverted N1 muffler and you can put whatever tip you want on there (as long as it's not smaller than the inlet opening ).
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Old 02-15-2001, 10:09 PM   #17
Jon Bogert
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Lightbulb

Well, I decided to try a take-off STI 6 muffler from SPD. As you may already know, it is NOT a straight through muffler, which is probably why it has a subdued noise level.

Given that it is standard on a 280HP car, I suspect it will pass enough gas not to choke my ~230HP. If it doesn't work out, I'm sure I can sell it here on the east coast in about 5 min.
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Old 02-16-2001, 12:19 AM   #18
Tony
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MattC,
I know what you mean about the N1. I had Rallispec hack it off last week and weld in one of their Magnaflow 2.5" mufflers. MUCH quieter and not nearly as cheesey looking.

Tony - Must be getting old or something.
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Old 02-16-2001, 08:40 AM   #19
Aspen
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Jon,

You're reasoning is exactly why I bought my STI v4-6 exhaust. How many of us are going up to 280ps? I figured once I can get there, I can worry about a different exhaust at a later time.

BTW, the only two "quiet" exhaust I found was the STI and Apex-I RS(which was discontinued).

There seems to be a misconception that chambered mufflers don't flow as well as straight through. Yes, this can be true when your dealing with High HP and/or big amounts of CFM. But for smaller amounts of CFM, the flow ratios are negligible. It has been tested and done by several manufacturers on the flow bench for some of their high performance chambered mufflers. I guess more people just want loud sound these days, hence straight thru.
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Old 02-16-2001, 09:43 AM   #20
Tony
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MattC,
Thanks for the old comment I think Jon has a good idea. Get a universal stainless 3" and have Rallispec just weld a 3" stainless tip to it like they did to Ian McFetredge's Eclipse. Here's a pic:

<IMG SRC="http://www.geocities.com/motorcity/flats/1859/97GSX-rear.jpg" border=0>

Actually this is a Thermal Research muffler that Rallispec sawed off the ricey top and welded on a section of 3" SS tubing but thats the general idea.

Tony

[This message has been edited by Tony (edited February 16, 2001).]
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